Resolved · lasted 12 h
Claude outage on August 18
Reports for Claude jumped to 6,444 an hour and stayed high for 12 h.
- Started
- 1:00 PM
- August 18, 2026 · UTC
- Back to normal
- 1:00 AM
- 12 h later
- Peak
- 6,444/hr
- 201× normal
- Anthropic’s incident
- 2 h 41 min
- Degraded performance for multiple models
Reports during the outage
What Anthropic said
status.claude.comDegraded performance for multiple models
- Resolved · 7:01 PM
The issue affecting Claude Opus 5 has been resolved. Impact occurred from 16:11 to 18:23 UTC.
- Monitoring · 6:26 PM
A fix has been implemented and we are monitoring the results.
- Investigating · 5:12 PM
We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
- Investigating · 4:20 PM
We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.
- Investigating · 4:20 PM
We are investigating reports of degraded performance affecting multiple models. We will provide an update as soon as possible.
Anthropic posted its first update 3 h 20 min after reports started rising.
What people said
- j2:43 PM
pedi que me registre cuando ya lo tengo pago
- rF5:36 PM
nO CARGA
- Sam Smith7:45 PM
Responde cuando le da la gana jajaja
21 comments during the outage
Is Claude down right now?
Live status, today’s reports and other past outages.